Skip directly to search Skip directly to A to Z list Skip directly to page options Skip directly to site content

NIOSHTIC-2 Publications Search

Search Results

Capacitor discharge welding: analysis through ultrahigh speed photography.

Authors
Wilson-RD; Woodyard-JR Sr.; Devletian-JH
Source
Welding J 1993 Mar; 71(Suppl):101s-106s
NIOSHTIC No.
10003955
Abstract
Ultrahigh-speed photography of 44,000 frames/s was used to investigate the capacitor discharge welding (CDW) process. The objective of the study was to use high-speed photography and a finite element computer program to help describe the heat flow characteristics of the CDW cycle. The photos revealed that the plasma jet from the cathode was responsible for expelling metal from the anode rather than being squeezed out on contact. Photographic evidence suggested that the unequal anode/cathode heating ratio is primarily due to heat transfer from the anode to the expelled metal particles.
Keywords
Welding; Analytical processes; Author Keywords: Capacitor Discharge; CWD; Photographic Analysis; Ultrahigh Speed; RSP Alloys; Transient Phenomena; Expulsion; Plasma Jet; Anode/Cathode Heat; Metal Spatter
CODEN
WEJUA3
Publication Date
19930301
Document Type
Journal Article
Fiscal Year
1993
NTIS Accession No.
NTIS Price
Identifying No.
OP 61-93
ISSN
0043-2296
NIOSH Division
ALRC
Source Name
Welding Journal
State
OR
TOP